Lubricating device



Jan. 18,1927. v 1,614,556

v A. E. JONES LUBRICATING DEVICE Filed March 20. 1924 l. iti

Patented Jan. 18, 19217.,

UNITED STATES P flENT FFCL.

ALBERT EDW'ARD JONES, OF WESTMINSTER, LONDON, ENGLAND,- ASSIGNOR 'lO THE WHITEHEAD TORPEDO COMPANY LIMITED, OF WESTMINSTER, ENGLAND.

LUBRICATING DEVICE.

Application filed March 20, 1924, Serial No. 700,646, and in Great Britain December 21, 1923.

This invention relates to lubricating devices for engines and machinery in general. lt is Well known that the viscosity ot lubricating oil varies considerably at different temperatures so that a lubricating system in which oil is .ted under pressure through restrictions otl dii'llerent sizes according to the importance oi the part to be lubricated and so designed as to supply an adequate quantity oit oil in hot Weather to the said parts, will supply a smaller, and sometimes inadequate, quantity in cold Weather. Furthern more in some cases, such as the engines of automobile torpedoes, some ot the parts to be lubricated are at a lower temperature than others and there is therefore a liability of the oil passing mainly or only to those parts at the higher temperature With the result that the other parts are more or less starved of oil. Several expediente have been devised for overcoming these difliculties but Without marked success and the chief object of the present invention is to provide an improved device which Will supply a measured volume oi oil to the part or parts to be lubricated irrespectiv-e of the viscosity of the oil or the different temperatures of the said parts, this device being of the kind comprising a rotary member moving in contact with a ported casing and having formed through it a hole in which is disposed a plunger of smaller length than that of the hole, one end of this hole being br-ought, by movement of the said member, opposite an oil pressure supply port to receive a charge of oil (the plunger being moved to the oth-er end of the hole by the act of charging) and then brought, by turther movement of the' said member, opposite a discharge p-ort communicating With the part to be lubricated, whereupon the charge of oil is ejected into the latter port by oil under pressure admitted to the other end of the hole and acting upon the plunger, the ejection of the charge of oil from one end of the hole thus resulting in the other end receiving a charge of oil Which is then ejected through a discharge port When the former end is brought opposite a supply port According to the present invention vve provide the casing with several pairs of dia-metrically opposite supply and discharge ports arranged in a common transverse plane with the hole in the rotary member. In this man ner a construction is provided which gives several deliveries ot oil per revolution of the rotary member which is balanced in regard to the oil pressure so that there is no liability of the said rotary member jamming as is the case when only one pair of ports in one plane is provided.

In order that the said invention may be clearly understood and readily carried into effect, the same will now be more fully described with reference to the accompanying drawings in Which- Fig. 1 is an axial section ot a construe tional form of the lubricating device.

Fig. 2 is a sectional View on the line 2-2 of Fig. 1.

Fig. 3 is a sectional view on the line 3 3 ot Fig.- 1.

A is the aforesaid rotary member and B is the ported casing in which this member moves.

In the construction shown the said inember A is in the torni oi a solid rotary drum having a transverse hole Al therethrough Which receives a plunger al, and the easing B in Which this drum rotates is formed With radial discharge ports B1, B2, B3 for the oil. Diametrically opposite the said discharge ports are the supply ports B, B, B3X which communicate with a duct contain' ing oil under pressure, the pressure being generated by a pump, by compressed air or by other suitable means. The discharge ports B1, B2, B3 and the supply ports BIX, BZX, B3X are all arranged in a common transverse plane as shown. The drum A may be rotated in a clockwise direction or in an anti-clockwise direction as desired and it Will be understood that during the rotation the hole A1 comes opposite each pair ot .discharge and supply ports in turn so that on each stroke oi the plunger effected by the entry of oil under pressure through a supply port a measured charge of oil is discharged through a discharge port; thus two measured charges ot' oil are delivered to each of the three discharge ports during each revolution of the drum A. The provision of the three pairs of ports results in the feeding pressure being balanced and therefore any tendency for the drum A to jam in the casing B is avoided.

The plunger has rounded ends as its movements are intended to be limited by contact With the casing B, and is made ot suitable length in relation to the length of the hole so that the required quantity ot' oil passes into the hole each time the latter comes opposite a supply port. It desired the ends ot' the plunger' may be prevented from Coming into Contact with the casing by suitable stops yconstituted for example by fixed pins engaging in grooves or slots in the plunger.

Having now particularly described and ascertained the nature ot my said inyention and in lwhat manner the same isto be per# formed, I declare that What I claim is uA lubricating device for delivering to the part to be lubricated a measured volume ot oil irrespective of its viscosity, comprising a rotary member formed with a ll`1 ole,a plunger ot' smaller length than'that 'of the hole disposed in said hole, and a casing in which saidvrotary member inovesysaid easing having a plurality of supply ports which are arranged in a common transverse plane with the hole in the rotary member and through which, in certain positions ot said rotary member, charges olI oil under pressure enter said hole to displace the plunger, and a plurality ol discharge ports which aie also arranged in a common transverse plane with the hole in the rotary member and each of which is arranged opposite one of the supply ports and through which7 in other positions olf said rotary member, the charges oil are ejected by the displacement -ot said plunger in the reve se direction by the en `ry of the Charges ol" oil under pressure through said supply ports.

Pi LBERT lDlgTVi/LRD J ONES. 

